More robust next_free_*_id.  This fixes the recent ParallelMesh examples regressions.
More robust next_free_*_id.  This fixes the recent ParallelMesh
examples regressions.



Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh